<div class="popover">
  <div class="popover-content-wrapper">
    <div class="popover-content">
      <div class="popover-content-item" *ngFor="let item of data">
        <div class="popover-lable">{{item.alias}}</div>
        <div class="popover-value">
          {{item.value}}
          <ng-container [ngSwitch]="item.unit" *ngIf="item.unit">
            <span class="popover-suffix" *ngSwitchCase="'sqkm'">km<sup>2</sup></span>
            <span class="popover-suffix" *ngSwitchCase="'sqm'">m<sup>2</sup></span>
            <span class="popover-suffix" *ngSwitchDefault>{{item.unit}}</span>
          </ng-container>
        </div>
      </div>
    </div>
    <div class="popover-bottom">
      <button nz-button nzType="default" (click)="onClickClose()">关 闭</button>
      <button nz-button nzType="danger" (click)="onClickRemove()">删 除</button>
    </div>
  </div>
  <div class="popover-arrow"></div>
</div>